Review on 💧 Kohler GP77006-RP Ceramic Valve: Enhanced Performance and Durability, Rough Plate Design - One Size by Chris Meckler

The new valve spins so freely compared to the old one. My old one stuck because the ceramic core wouldn't stay in place. The new one has a nice solid rubber seal. You can check if the camera above matches the one you're shooting. You should be able to rotate it if necessary. or just leave it and the handle will rotate the other way. Removing both handles in the photo beforehand will help restore their position. Turn off the water. Unscrew the old one. Check whether the valve seat is damaged.